Rack bar



FIG. 1 is a perspective view of a rack bar showing the top, front, and right sides, in a first embodiment;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof—the right side view thereof is identical;

FIG. 5 is a perspective view of a rack bar showing the top, front, and right sides, in a second embodiment;

FIG. 6 is a top view thereof; and,

FIG. 7 is a front view thereof.

The broken lines in the drawings are included for the purpose of illustrating subject matter that forms no part of the claimed design.

The appearance of any portion of the rack bar between the bracketed jagged break lines in the first and second embodiments forms no part of the claimed design 

CLAIM The ornamental design for a rack bar, as shown and described. 